Bolt-machine



E. SIMKINS 'Bolt Machine.

Patented Au'g. 24 1858.

UNITE srs BOLT-MACHINE.

Speccaton of Letters Patent No. 21,279, dated August 24, 1858.

T0 all whom it may concern.' Y

Be it known that I, ELIsHA SIMKINS, of the city and county of Allegheny,in the State of Pennsylvania, have invented a new and Improved Machinefor Making Bolts, Spikes, &c.; andI do hereby declare that the followingis a full and exact description thereof, reference being had to theaccompanying drawings and to the letters of reference marked thereon,similar letters referring to similar parts.

The nature of my invention consists 1n a mechanical arrangement foradjusting the dies, removing the bolts, stopping, starting andregulating the stroke and force of the hammer, and also in anarrangement for relieving the machinery from the concussion produced bythe action of the hammer.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

In the accompanying drawings Figure l, is a perspective view of themachine (when looking at the side) and represents the hammer at rest,Fig. 2, is a perspective View of the machine (when looking at the righthand side) and represents the hammer raised, Fig. 3, is a perspectiveview of the machine (when looking at the front end) and represents thehammer raised. Fig. 4, is a perspective and sectional view of themachine (when looking at the back end) and represents the hammer raised.l

In the accompanying drawings (s) is the frame of the machine7 (a) is thereceiver of hammer (o) which is held in its place by the nut (p1) thereceiver (a) is secured to two rods (c) which forms the helve of thehammer; the rods (c) are attached to the shaft (8) which is hollow; thehand wheel (fw), the bevel wheel and the two ratchet wheels (j) are heldto their place by a shaft or spindle which passes through the hollowshaft Secured to the hollow shaft (8) is a screw which is armed with abevel wheel (761); the screw (y) moves the cross or sliding head (CZ)the two rods (o) form the slides or bearing for the cross or slidinghead (d) the connecting rod (7a) passes through the cylinder (e) and isheld to its place by the two spiral springs (f) and the two nuts (g) thecylinder (e) oscillates be- ,tween the jaws of the sliding head (d) thebearings for the trunnions of the oscillating cylinder (e) are in thejaws of the sliding head (d). The crank (h1) is operated by the wheelOver the wheel and is a lever of several parts) is connected to the stop(r) by raising the lever (u) it will slacken the belt (5), move to oneside the stop (r), stop the machine, open the die (m), and throw out thebolt; by lowering the lever (u) it will tighten belt (5), draw to oneside the stop (r), close the die (m), and start the machine.

`It will be observed that the lever (u) moves the lever (t) which isconnected to the link (m1) on the die (m) and acts with lever (u) inclosing the die. The lever `with its double ratchet and the ratchetwheels (j) are used for the purpose of regulating the force and strokeof the hammer. When the handle (il) of lever (2'.) is drawn forward theoutside ratchet and ratchet wheel will cause the spindle in the hollowshaft (8) to revolve backward by the motion of the hammer, and thesliding head (el) is drawn back toward the back end of the machine,thereby increasing the force and stroke of the hammer. When the handle(il) is thrown back the inside ratchet and ratchet wheel will cause thespindle in the hollow shaft to revolve forward by the motion of thehammer, and Vthe sliding head (d) is thrown forward toward the front endof the machine, thereby diminishing the force and stroke of the hammer.

The hand wheel (fw) is used for regulating the hammer without the use ofthe ratchet and ratchet wheels (j). When the hammer is in use and nochange of the stroke or force is required, the handle (il) of leverstands perpendicular with the die (m) as shown in Fig. l of thedrawings. The handle or lever (0) is used for the purpose of opening andclosing the die (m) without the use of levers (u) and (t).

It will be observed that the different size of bolts or spikes, &c.,will require a different size of dies and hammers; hence these parts areso arranged that they can be changed with ease and speed; and it willalso be observed that by my arrangement of the connecting rod withcylinder (e), springs (f) and nuts (g), the crank (h1) can pass itscenters at any changel of position of the connecting rod (h).

The operation of my improved bolt machine is as follows: Having preparedthe iron by cutting it in proper lengths for the bolt desired and havingthe iron properly heated in afurnace prepared for that purpose, a pieceof the iron thus cut and heated is placed in the die (m), the lever (u)is pressed down by the operator, which will close the die and start themachine. When the hammer has been in operation suflicient' time to formthe head on the bolt, the lever (u) is raised up, which will open thedie and move the stop (r) in so as to come in a line with the stud (15)which is on the projection or offset (Z) of the hollow shaft (8). Thestud (15) in the upward motion of the hamnier, will strike the stop(1'), which is thrown forward, giving to the levers (p1) and (g) andbolster (s1) a quick and sudden motion, thereby throwing the bolt out ofthe die and stopping the machine, which is then ready for making anotherbolt.

What I claim as of my invent-ion and desire to secure by Letters Patentof the United States is- 1. The flexible connecting rod (h); and thearrangement of the cylinder (e), the spiral springs (f), and nuts (g),as described and for the purpose set forth.

2. The arrangement of the lever the ratchet wheels (j), the bevel wheels(7c) and (Irl), the screw (y), and the cross head (d), when used inconnection with the flexible connecting rod (It), as herein describedand for the purpose set forth.

3. The arrangement of the compo-und lever (u), and the pulleys (o), inconnection lwith the lever (t) and stop (7"), as herein described andfor the purpose set forth.

4. The arrangement of the stud (15), the stop (r), the levers and (g),and the bolster (s1), as herein described and for they purpose setforth.

ELIS'HA SIMKINS.

. Vitnesses G. l?. STEOK,

ALEXANDER HAYS.

